工程问题是小学数学教学中的一个教学内容。它是作为一种典型应用题出现的,教师把重点放在围绕“工作效率×工作时间=工作总量”这个数量关系进行变式训练。运用工程问题解决一些简单的实际问题,这应该说是工程问题教学之“源”。但我利用“工程问题”的“源”解决一些“本”的问题,在学完工程问题的知识后设计具有延伸应用实践价值的问题,来训练学生的思维和解决实际问题的能力,培养学生的数学情感。 Engineering problem is a teaching content in elementary mathematics teaching. It emerges as a typical application question, with teachers focusing on variant training around the quantitative relationship between “work efficiency × work time = total work volume”. The use of engineering problems to solve some simple practical problems, which should be said that engineering problem teaching “source ”. However, I use the “source ” “engineering ” “ ” to solve some “this ” problem, after the completion of the knowledge of engineering problems designed to extend the practical value of the problem, to train students’ thinking and solve practical problems The ability to develop students’ mathematical emotions.